DE102021212180A1 - Manufacturing plant for manufacturing a door of a household refrigeration appliance, and method - Google Patents

Abstract

One aspect of the invention relates to a manufacturing system (1) for manufacturing a door of a household refrigeration appliance, with a manufacturing mold (2') which has a first mold carrier (3') for receiving a front side of the door and a second mold carrier (3') separate from the first mold carrier (3'). mold carrier (4') for receiving a rear side of the door, and with a hinge device (5') with which the two mold carriers (3', 4') are pivotably connected to one another, the production mold (2) having a horizontally oriented longitudinal axis (A ) and in the open state of the production mold (2), viewed in the direction of this horizontal longitudinal axis (A), the first mold carrier (3) is arranged in series with the second mold carrier (4) and the joint device (5) in the direction of this horizontal longitudinal axis (A ) is arranged between the two mold carriers (3, 4), so that a pivot axis (B) of the joint device (5) is formed which is oriented perpendicularly to the horizontal longitudinal axis (A). One aspect also relates to a method.

Description

One aspect of the invention relates to a manufacturing plant for manufacturing a door of a household refrigeration appliance. The production plant has at least one production form. The production mold has a first mold carrier which is designed to receive a front side of the door. The production mold also has a second mold carrier, which is separate from the first mold carrier and is designed to accommodate a rear side of the door. The production mold also has a joint device with which the two mold carriers are pivotably connected to one another. This allows the production mold to be opened and closed. In the open state, the first mold carrier and the second mold carrier are accessible in order to be able to introduce the front side of the door and the rear side of the door therein. The front and back are already manufactured components of the door. They are inserted into the mold carriers accordingly.

Various exemplary embodiments of such manufacturing systems for manufacturing doors of a domestic refrigeration appliance constructed in this way, in which such a thermally insulating material is then introduced, are known. For example, so-called drum systems are known as production layers in this context. As the name already indicates, a drum installation has a drum on which several separate production molds of this type are arranged. The drum can rotate around a horizontally oriented axis, so that the production molds are also rotated accordingly.

In 1 In this context, a production form 2' known from the prior art for a drum system is shown as the production system 1'. This production mold has a first mold carrier 3 . It has a separate second mold carrier 4'. Furthermore, a joint device 5' is shown. These two mold carriers 3' and 4' are arranged one above the other in the height direction y-direction of the production plant 1' and thus also of the production mold 2'. where is in 1 the assembly position is shown when the drum of the production system 1' is rotated in such a way that a worker 6 has access to this lower second mold carrier 4' in the standing state. The production mold 2' remains arranged in this assembly position. As can be seen, the worker 6 can then relatively easily equip the lower second mold carrier 4′, which faces him and is inclined, with a rear side 7′ for the door. This rear side 7' of the door is in particular made of plastic.

As moreover in 2 As can be seen, with this arrangement of the production mold 2 ′, the assembly of the first mold carrier 3 ′ arranged above it is ergonomically very difficult and expensive for the worker 6 . On the one hand, accessibility is restricted upwards, since the second mold carrier 4' located underneath is correspondingly forward. In this context, it is therefore also difficult to equip the upper first mold carrier 3' here with a front side 8 of the door. It can therefore also happen in this exemplary embodiment that the front side 8 is not fitted with sufficient positional accuracy. This can have disadvantages when closing the production mold 2'. In particular, the front side 8′ and the back side 7′ cannot then be positioned relative to one another in such a way that the thermal insulation material can also be introduced in a targeted and correct manner and the foam does not emerge undesirably when the production mold 2′ is then closed.

In 3 another exemplary embodiment of such a production system 1' from the prior art is shown in connection with this. To the 2 In order to be able to reduce the disadvantages explained, it is provided in an exemplary embodiment of a relevant production system 1 ′ in the form of a drum system that this lower, second mold carrier 4 ′ can be pivoted downwards according to the arrow P. The upper mold carrier 3' remains in its original position. This pivoting allows improved access to the upper, first mold carrier 3'. However, the worker 6 then still has to work overhead in order to be able to equip this first, upper mold carrier 3' with the front side 8'. In addition, a corresponding amount of time is required to swivel this second, lower mold carrier 4' downwards.

Therefore, the production plant 1' not only has the problems with regard to the position of the mold carriers 3' and 4' in relation to one another, but there is also an increase in the cycle time when manufacturing the door, since in the time phase in which this lower mold carrier 4' pivots downwards no action can take place. Therefore, this is a corresponding waste of time.

In view of the explained disadvantages of such a production plant 1`, it is the object of the present invention to create a production plant in which the production time of a door is precisely in the production phase in which the production tion form is to be fitted, can be reduced.

This object is achieved by a manufacturing system and a method according to the independent claims.

One aspect of the invention relates to a manufacturing plant for manufacturing a door of a household refrigeration appliance. The manufacturing plant is thus a door manufacturing plant for manufacturing a household refrigeration appliance door. In particular, the production plant is also a foaming plant in which thermal insulation material can be introduced into a production mold in which a front and a back of the door are introduced into an intermediate space between the front and the back of the door.

The manufacturing facility has at least one manufacturing mold for receiving a front and a back of the door. The production mold is intended for the front and the back to be introduced or inserted into the production mold as already prefabricated components. The production mold has a first mold carrier. The first mold carrier is intended to receive a prefabricated front side of the door. The production mold also has a second mold carrier that is separate from the first mold carrier. This second mold carrier is designed to receive a prefabricated rear side of the door. In addition, the production mold has a joint device. The two mold carriers are directly connected to this joint device, in particular pivotally connected to one another. With this configuration, the production mold can be opened and closed. When closed, the mold carriers lie on top of each other. When open, the mold carriers are positioned in such a way that the assembly areas, into which the front and the back of the door can be inserted, are freely accessible. The mold carriers are in particular mold halves of the production mold.

The production mold has a horizontally oriented longitudinal axis. When the production mold is open and viewed in the direction of this horizontal longitudinal axis, the first mold carrier is arranged in series with the second mold carrier. Viewed in the direction of this horizontal longitudinal axis, the joint device is arranged between these two mold carriers. The arrangement of the articulated device is such that a pivot axis of the articulated device that is oriented perpendicularly to the horizontal is formed. Various advantages are achieved by such a production plant. On the one hand, the two mold carriers are arranged more or less at the same height as each other when they are open. This means that they can be positioned next to each other at the same time so that they can also be loaded at the same time. In addition, this position in the horizontal direction, in which they are arranged in a row with one another, is advantageous in that a worker no longer has to work overhead. Both mold carriers are simultaneously positioned or can be positioned in such a way that they can be fitted by a worker or a robot without having to work overhead. Through this arrangement and configuration of the production form, it is also advantageously achieved that a loss of cycle time, as is the case in the prior art 3 was explained. Because it is no longer necessary for a lower mold carrier, which no longer exists in this production system according to the invention and the corresponding production mold, to first have to be swiveled down separately in order to achieve improved access to a mold carrier arranged above it in the height direction. Since this principle of a lower and an upper mold carrier is dissolved in the production mold by the manufacturing system according to the invention, the to 1 until 3 explained disadvantages are completely eliminated.

This concept also makes it possible for the two mold carriers to be arranged in one plane with respect to one another and in the horizontal direction next to one another when the production mold is in the open state. This benefits the advantages mentioned above. In particular, a particularly simple assembly is thus possible. Simultaneous assembly is thus made possible in a particularly simple manner.

In addition, this orientation also allows the production mold to be closed easily. The appropriately oriented pivot axis enables a variety of devices to bring about a quick and precise closing of the production mold.

In one exemplary embodiment, viewed in the vertical direction of the production plant, the first mold carrier and the second mold carrier are arranged at the same height relative to one another when the production mold is in the open state.

In one exemplary embodiment, a mold carrier is oriented obliquely when the production mold is open and an assembly position of the production mold in the production plant has been reached. This means that the mold carrier faces the robot or the worker at an angle. In particular, an end of this mold carrier that is closer to the robot or the worker is therefore lower, viewed in the height direction, than a dem The end of the mold carrier that is further away from the robot or the worker.

Tilting is not necessary when using a robot. However, it can be done even then.

In particular, one exemplary embodiment provides that when the production mold is in the open state and in a loading position of the production mold that has been reached along the production system, both mold carriers simultaneously have the same corresponding inclined position. This further improves the above-mentioned advantages with regard to quick and simultaneous as well as ergonomically simple assembly.

In one exemplary embodiment, the joint device has an upper joint and a lower joint, viewed in the direction of the pivot axis. These two joints are arranged at mutually facing corners of the mold carrier. In particular, these are corners of the short sides of the mold carriers that face one another.

In one exemplary embodiment, a mold carrier, in particular both mold carriers, can be designed to be essentially rectangular on their respective component side, or can be designed as a body as a cuboid. The sides of these rectangles, which are short in this context, are oriented parallel to the pivot axis. They are arranged one after the other viewed along this horizontal longitudinal axis and are arranged facing one another in the context. The longer sides of these rectangular mold carriers are oriented in the direction of the horizontal longitudinal axis and are thus oriented parallel thereto. The longer sides of this mold carrier are thus arranged in series with one another, viewed along this horizontal longitudinal axis.

This also characterizes a geometry of a mold carrier that is specified in this regard with regard to its position in space. In particular, both mold carriers are arranged accordingly.

In one exemplary embodiment, the production plant has a conveyor device. In the open state of the production mold, the two mold carriers are arranged next to one another in a common plane on this conveyor device. The conveying device can have a corresponding frame. For example, this frame can also have a pivoting device that represents a horizontal pivot axis. This pivot axis can be oriented parallel to the horizontal longitudinal axis. The conveyor device can be inclined by this pivot axis, so that the advantageous inclined position of the two mold carriers, already mentioned above, can be set in the loading position of the production mold. This pivot axis of the conveying device is in particular oriented perpendicularly to the pivot axis of the joint device.

In one embodiment, the conveyor has a support table.

The mold carriers are arranged on this support table when the production mold is open and the assembly position of the production mold along the production plant has been reached. In one exemplary embodiment, the support table is inclined at an angle of between 20° and 70°, in particular between 30° and 60°, compared to the horizontal plane. This applies in particular when the production mold has reached the placement position along the production route in the production facility.

This inclined position is in particular that which has already been explained above and which is inclined towards a worker standing in front of it or a robot.

In one exemplary embodiment, the conveying device has a conveying unit. With the conveyor unit, the mold carriers can be moved further on a support table of the conveyor device. On the one hand, the production mold can thus be moved or brought there with the conveyor unit into the loading position along the production path in the production plant. On the other hand, the production mold can then be moved on accordingly if it is to be moved on again from this assembly position.

In particular, a high degree of automation is not only made possible with this embodiment. It is precisely the aspect mentioned with regard to the production plant according to the invention with the specific arrangement and orientation of the production mold in the open state that enables a high degree of automation. This is to the effect, as already explained above, that the accessibility to the individual mold carriers is made easy, both mold carriers are accessible and can be loaded at the same time and therefore the loading with a robot, at least one mold carrier, can also be improved.

In one embodiment, the conveyor unit has a toothed rack. This toothed rack is designed for meshing coupling and decoupling with a further toothed element of the conveying device. In the meshing state between the toothed rack and the toothed element, a relative movement between the toothed rack and the toothed element can be brought about by a motor of the conveyor device. This allows the movement of at least one mold carrier, in particular both Mold carriers can be reached particularly precisely on the support table by a defined horizontal distance in the direction of said horizontal longitudinal axis. This movement is then slip-free. The shift in this regard can therefore in particular also take place very quickly and without slippage or the like. In this way, the production form can be brought quickly and precisely into this assembly position along the production route in the production plant.

In particular in comparison to an exemplary embodiment in which such a toothing device is not present, such positional tolerances of the mold that could occur as a result of an undesired further rolling or further sliding of corresponding rolling or sliding devices can be avoided.

The required position tolerances can also be achieved in variants without a rack and pinion system if the acceleration forces are below the prevailing frictional forces on rollers or the transport rollers of a roller device.

In one exemplary embodiment, the conveyor unit has a roller device on which the at least one production mold rests. A further movement of this production form on the support table by rolling along is therefore easy to carry out. For example, when the production mold is closed and, in particular, the thermal insulation material has already been introduced, this production mold, which is closed in particular, can simply be moved out of the loading position and this can be made possible in this respect by the roller device. Due to this further production route, it is therefore not necessary to provide a tooth device, as has been advantageously explained above. Thus, on the one hand, it is advantageous that, in order to reach the assembly position of this production form, the movement takes place at least with the aid of the toothing device mentioned. Subsequent to the manufacturing process step, moving on the basis of such a toothing device can then be dispensed with. If necessary, the mentioned roller device can then suffice.

In one exemplary embodiment, the production plant has a pivoting device. Closing of the production mold can be carried out as intended by this pivoting device. Starting from the open state of the production mold and the two mold carriers lying next to one another in the horizontal direction in this respect, the closing can then be brought about in a targeted manner by this pivoting device. In particular, this pivoting device pivots one mold carrier about the above-mentioned pivot axis of the joint device onto the other mold carrier. Such a pivoting device can be designed in many ways. It can have lifting devices that function hydraulically, pneumatically, or with an electric motor. However, other pivoting devices are also possible.

For example, arms can be provided in this context, which are combined with a deflection roller, so that when the open production mold is guided along the production path in the production plant, this open production mold reaches these arms, couples to them and, in particular, due to the existing deflection roller or roller, the closing process then automatically the mold carrier is effected about the pivot axis of the hinge device.

In a further exemplary embodiment, at least one mold carrier has a width, measured parallel to the pivot axis of the joint device, which is between 750 mm and 1050 mm, in particular between 800 mm and 1000 mm. This configuration makes it possible to produce even very large doors for very large household refrigeration appliances in a simple manner and with a reduced production time.

In one exemplary embodiment, a mold carrier has a length measured parallel to the horizontal longitudinal axis, which is in particular between 1200 mm and 2500 mm. The advantages mentioned above with regard to the width also apply in this regard.

In a further exemplary embodiment, the production facility has a foaming unit. This is intended to introduce thermal insulation material, in particular thermal insulation foam, into the production mold. In particular, this thermally insulating foam is injected into the front of the door placed in the mold carrier and/or into the rear of the door placed in the mold carrier. This gap is formed when the front and back are placed in the mold carrier and the manufacturing mold is closed.

In this way, foaming can also take place in a production plant of this type in a simple and advantageous manner.

In one exemplary embodiment, the production plant is designed as a circulation plant. In this circulating system, the conveying device is a linear system with a conveying section. Several production molds are placed simultaneously on this conveyor line and the mold carriers of these production molds are in the direction of this horizontal longitudinal axis arranged in relation to one another and can be conveyed in all directions. Such a circulation system is not a drum system. In the case of a circulating system, there is therefore no rotation of a production mold, viewed as a whole, about an axis of rotation of a drum. Because such a drum is not available in a circulation system. Rather, the production molds are only moved in this linear direction along the circulation path of the circulation system on the production path, on which the production mold is also loaded with the front and the back of the door and the production mold is closed.

In one exemplary embodiment, the mold carriers of the production mold are arranged next to one another in a linear direction when the production mold is open so that they can be fitted with the front side and the back side at the same time. This also enables a high degree of automation of the production plant. For example, the relevant loading can be done with one worker or two workers. Equipping can also take place on the one hand with a worker and on the other hand with a robot. It is also possible that both placements are carried out with one robot or two different robots. With the proposed production plant, the variability with regard to the occupancy of the plant with workers and/or robots is therefore also very flexible and variable.

Such is in the system known from the prior art, as to 1 until 3 explained is not possible.

A further aspect of the invention relates to a method for producing a door for a household refrigeration appliance. The production takes place in particular with a production system according to the aspect mentioned above or an advantageous embodiment thereof.

• -Bereitstellen einer geöffneten Fertigungsform auf einer Fördereinrichtung der Fertigungsanlage, so dass die Formträger in Richtung ihrer Längsachsen in Reihe zueinander angeordnet werden;
• -Bestücken des ersten Formträgers mit der Vorderseite der Tür;
• -Bestücken des zweiten Formträgers mit der Rückseite der Tür, wobei die Position der Formträger bei diesem Bestücken mit der Vorderseite und der Rückseite zueinander unverändert bleibt;
• -Befüllen der eingelegten Vorderseite und/oder der eingelegten Rückseite mit Isolationsschaum; und
• -Schließen der Fertigungsform, indem ein Formträger um die Schwenkachse der Gelenkvorrichtung auf den anderen Formträger aufgeschwenkt wird.

The procedure involves the following steps:

• -Preparation of an opened production mold on a conveyor device of the production plant, so that the mold carriers are arranged in series with one another in the direction of their longitudinal axes;
• - equipping the first mold carrier with the front of the door;
• - equipping the second mold carrier with the back of the door, the position of the mold carriers remaining unchanged in relation to one another during this loading with the front and the back;
• -Filling the inlaid front and/or the inlaid back with insulation foam; and
• - Closing the production mold by pivoting one mold carrier around the pivot axis of the joint device onto the other mold carrier.

In particular, the positions of the mold carriers relative to one another remain unchanged during the entire loading process (loading with the front and with the back). So the front and the back are respectively inserted into the mold carrier. Once this has taken place, thermal insulation material, in particular in the form of an insulation foam, is introduced into at least one of the two mold carriers. In the further course, the production mold is closed and the two mold carriers are pivoted towards each other. The production mold remains in the closed state until the curing time of the insulation foam has expired.

Advantageous exemplary embodiments of the production plant mentioned are to be regarded as advantageous exemplary embodiments of the method. The components of the manufacturing plant in question, alone or at least partially operatively connected, enable the process steps for the process.

The information “top”, “bottom”, “front”, “back”, “horizontal”, “vertical”, “depth direction”, “width direction”, “height direction” etc. are the positions specified for the intended use and intended arrangement of the system and directions given.

Further features of the invention result from the claims, the figures and the description of the figures. The features and combinations of features mentioned above in the description, as well as the features and combinations of features mentioned below in the description of the figures and/or shown alone in the figures, can be used not only in the combination specified in each case, but also in other combinations, without going beyond the scope of the invention leaving. The invention is therefore also to be considered to include and disclose embodiments that are not explicitly shown and explained in the figures, but that result from the explained embodiments and can be generated by separate combinations of features. Versions and combinations of features are also to be regarded as disclosed which therefore do not have all the features of an originally formulated independent claim. In addition, there are versions and combinations of features, in particular through the versions set out above, to be regarded as disclosed go beyond or deviate from the combinations of features set out in the back references of the claims.

• 1 eine Seitenansicht einer Fertigungsform, wie sie aus dem Stand der Technik bekannt ist und bei einer Trommelanlage eingesetzt wird;
• 2 eine Darstellung gemäß 1 in einem zu 2 unterschiedlichen Fertigungszustand;
• 3 die Darstellung gemäß 1 und 2, bei welchen die aus dem Stand der Technik bekannte Fertigungsform mit einem Formträger verschwenkt wurde, um die Zugänglichkeit zu einem darüber liegenden Formträger der Fertigungsform für ein über Kopf arbeiten für einen Werker zu ermöglichen;
• 4 die schematische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Fertigungsanlage;
• 5 die perspektivische Darstellung eines Teilbereichs der Fertigungsanlage gemäß 4 mit einer Fertigungsform, die in einer Bestückungsposition entlang des Fertigungswegs der Fertigungsanlage angeordnet ist und geöffnet ist;
• 6 eine Seitensicht der Darstellung gemäß 5; und
• 7 eine weitere perspektivische Darstellung eines Teilbereichs der Fertigungsanlage gemäß 4 mit einer geöffneten Fertigungsform.

Exemplary embodiments of the invention are explained in more detail below with the aid of schematic drawings. Show it:

• 1 a side view of a production form, as is known from the prior art and is used in a drum system;
• 2 a representation according to 1 in one to 2 different production status;
• 3 the representation according to 1 and 2 , in which the production mold known from the prior art was pivoted with a mold carrier in order to enable accessibility to a mold carrier of the production mold lying above it for overhead work for a worker;
• 4 the schematic representation of an embodiment of a production plant according to the invention;
• 5 the perspective view of a portion of the manufacturing plant according to 4 with a production mold which is arranged and opened in a mounting position along the production line of the production plant;
• 6 a side view as shown 5 ; and
• 7 a further perspective representation of a partial area of the production plant according to FIG 4 with an open production mold.

Elements that are the same or have the same function are provided with the same reference symbols in the figures.

In the 4 an exemplary embodiment of a production plant 1 is shown. The production plant 1 is intended and designed for the production of a door of a household refrigeration appliance. The production plant 1 is also designed to foam a door of a household refrigeration appliance. The production plant 1 is designed as a circulation plant. This also means, in particular, that it has a conveying line or an orbit 9, along which the production line is formed. In the exemplary embodiment, several separate production molds 2 are arranged along this circulation path 9, which is a linear path. They are moved in a linear direction along this circulating path 9 and, in this respect, are transported or conveyed to the corresponding manufacturing stations or manufacturing sections.

The production plant 1 has an assembly area 10 along this circulation path 9 . The assembly area 10 is thus a production area of the production system 1 in which the production mold 2 is open and on the one hand a front side and on the other hand a rear side of the door to be produced can be introduced or inserted into mold carriers 3 and 4 of the production mold 2.

The production mold 2 also has a joint device 5 . The two separate mold carriers 3 and 4 of this production mold 2 are connected to one another in an articulated manner by means of the joint device 5 . In one exemplary embodiment, this assembly area 10 is secured by at least one light barrier of the production plant 1 . This allows the access of, for example, a worker 6, as in the 1 until 3 shown, and/or monitored by a robot, not shown. In particular, therefore, a zone in the depth direction (z-direction) when considering 4 in front of the production mold 2 can be monitored. This is particularly advantageous in order to find appropriate free space when the production mold 2 is closed and thus when the mold carriers 3 and 4 are folded together via the joint device 5 . For example, a traffic light station can also be implemented in this context, which visually indicates to the worker 6 and/or the robot whether the loading area 10 is accessible again.

As already in 4 As can be seen, the production mold 2 is designed in this open state during the production process in such a way that the mold carriers 3 and 4 are arranged in a row with one another in the horizontal direction. This means that along a horizontal longitudinal axis A of the production mold 2, these two mold carriers 3 and 4 are positioned in this horizontal row relative to one another when the production mold 2 is in the open state. Viewed in the direction of this longitudinal axis A, which is located in the horizontal direction or in the width direction (x-direction) of the production system 1 in this assembly area 10, the joint device 5 is arranged or formed between these two mold carriers 3 and 4. The joint device 5 is part of the production mold 2 and is directly connected to the mold carriers 3 and 4 . In this context, a pivot axis B of this joint device 5 is formed, which is oriented perpendicular to this longitudinal axis A in this open state of the production mold 2 in the assembly area 10 of the production system 1 . In one exemplary embodiment, this pivot axis B is oriented in a plane that is spanned by the depth direction (z-direction) and the height direction (y-direction) of the production facility 1 . She's also at an angle which is oriented in particular between 20° and 70°, to the horizontal plane which is spanned by the z-direction and the x-direction.

In particular, these arrangements and orientations apply to the position of the production mold 2 at least in the assembly area 10 of the production system 1. This procedure and orientation means that the assembly of the mold carriers 3 and 4 as intended in this assembly area 10 is equipped with the front side 7′ on the one hand and the rear side on the other 8' of the door is particularly easy and advantageous. Accessibility to both mold carriers 3 and 4 is unrestricted and also possible at the same time. It is no longer necessary for a worker 6 to work overhead or to load a robot overhead. The front 7' can be an outer wall made of sheet metal. The back 8' can be an inner wall made of plastic.

In addition, in 4 it can also be seen that the production plant 1 has a conveyor device 11 . This also defines the circulating path 9 . The in particular several separate production molds 2 are arranged on this conveyor device 11 . The conveyor device 11 has a support table 12 on which the production molds 2 are arranged directly. In particular, at least in the loading area 10, this support table has an orientation which is inclined at an angle of between 20° and 70°, in particular between 30° and 60°, compared to the horizontal plane. This inclined position is such that the production mold 2 faces the assembly area 10 with its open mold carriers 3 and 4 .

In 5 a partial section of the production plant 1 is shown in a perspective view. A partial section of the assembly area 10 is shown here. It can be seen that the production mold 2 is shown in the open state. The inclination of the production mold 2 to the horizontal plane can also be seen. Viewed along the circulating path 9, in particular in the area of the assembly area 10, of the production plant 1, the longitudinal axis A is oriented in the direction and thus parallel to the direction of circulation. The mold carriers 3 and 4 of the opened production mold 2 are thus also arranged in series with one another in this zone of the coupling region 10 along this direction of rotation.

In this state, the mold carriers 3 and 4 are arranged next to one another or in a row in a linear direction in such a way that they can be equipped with the front side 7′ of the door and, on the other hand, with the back side 8′. This also means that work can be carried out on both mold carriers 3 and 4 at the same time and side by side. The loading of the mold carriers 3 and 4 can thus be carried out simultaneously by two different workers 6 and/or on the one hand by one worker 6 and on the other hand by a robot or by two separate robots. It is thus possible that no worker 6 is present and, for example, only one robot is provided, which equips both mold carriers 3 and 4 .

As in 4 and 5 already indicated, the production mold 2 is moved along the circulating path 9 of the production facility 1 into the assembly area 10 . The production mold 2 is made available in the open state of the conveyor device 11 .

This is done in such a way as it already is 4 and 5 was explained. The first mold carrier 3 is then fitted with the front side 7' of the door and the second mold carrier 4 is fitted with the rear side 8' of the door. During this entire assembly process, the position of the mold carriers 3 and 4, in particular in relation to one another, remains unchanged.

Once this assembly has been completed and insulation foam has also been introduced into the front 7' and/or the rear 8', in particular with a foaming unit 17, the next step is to close this production mold 2. For this purpose, the movement of the mold carriers 3 and 4 around the Pivot axis B completed, so that the mold carrier 3 and the mold carrier 4 are pivoted toward each other, and then lie on each other in the closed state. Such pivoting can, as shown in 4 This can also take place outside of the assembly area 10, for example in a closing area 13. In particular, this closing process takes place automatically by means of appropriate devices in the production system 1. For example, arms 14 and a roller 15 or deflection roller can be provided. When the production mold 2 moves along the circulating path 9 and out of the assembly area 10 into the closing area 13, the arms 14 come into automatic contact. By moving around the circulating roller 15, this closing process is then completed automatically.

However, other locking devices are also possible. These can be implemented, for example, with lifting devices such as corresponding lifting cylinders or the like. These examples of the closing process are also not to be understood as exhaustive. Other devices can also be provided.

As in 5 can be seen, the two mold carriers 3 and 4 are right in their surface design square. In this context, short side lengths 3a and 3b are oriented perpendicularly to the longitudinal axis A. The same applies to short side lengths 4a and 4b of the mold carrier 4. The short side lengths 3b and 4b facing one another are connected directly to the joint device 5. For this purpose, viewed in the direction of the pivot axis, an upper joint 5a and a lower joint 5b are provided. In this context, these are formed at the corner areas of these short side lengths 4b and 3b. Long side lengths 3c and 3d are oriented parallel to the longitudinal axis A. The same applies to the long side lengths 4c and 4d of the second mold carrier 4.

In addition, in 5 it can also be seen that in this open state of the production mold 2, in particular when it is in the assembly area 10 of the production plant 1, the mold carriers 3 and 4 are arranged in a common plane. In addition, the long side lengths 3c and 4c are arranged substantially in line with each other. This applies correspondingly to the long side lengths 3d and 4d. In this open state of the production mold 2, the mold carriers 3 and 4 are shown in FIG 5 also without offset in height direction and/or without offset in depth direction.

It can be provided that the mold carriers 3 and/or 4 have a dimension or a width of between 750 mm and 1050 mm, in particular between 800 mm and 1000 mm, with regard to their short side lengths 3a, 3b, 4a and 4b. In one exemplary embodiment, at least one mold carrier 3 and/or 4 parallel to the longitudinal axis A has an extent of the long side length 3c and/or 4c and/or 3b and/or 4b of between 1200 mm and 2500 mm.

As in 5 can also be seen, the long side lengths 3c, 3d, 4c, 4d are oriented parallel to the longitudinal axis A, in particular also parallel to the orbit 9, when the production mold 2 is in the open state and when this is in this assembly area 10 of the production system 1.

As already to 4 explained, after the insulation foam has been fitted and introduced, it is closed by pivoting the mold carriers 3 and 4 about the joint device 5.

This configuration is thus realized with a pivoting device 16 of the production plant 1 in the pivoting area.

Subsequent to the insertion of the front 7' and the rear 8' into the mold carriers 3 and 4 of the production mold 2, a gap formed between the front 7' and the rear 8' of the door in the production mold 2 is filled with a thermal insulation material, in particular an insulation foam. For this purpose, the production plant 1 has in particular a foaming unit 17 which is only indicated by a reference number and which has already been mentioned above. While the production mold 2 is still in the open state, this insulating foam is introduced, in particular injected. It is then closed immediately. The closed state remains until the insulation foam has hardened.

In one exemplary embodiment, it is provided that the production plant 1 has a conveyor unit 18 . The conveyor unit 18 is part of the conveyor device 11. The conveyor unit 18 can have a toothed rack 19 and/or a toothed rack 20 in one exemplary embodiment. In addition, the conveyor unit 18 has an in 6 unrecognizable, but in 7 toothed element 21 shown. This meshes with the toothed rack 19. The toothed element 21 is driven by a motor 22 of the production plant 1 and the production mold 2 is moved quickly and accurately in position on the support table 12.

In addition, it can be provided that the conveyor unit 18 has a roller device 23, as is also shown in 6 and 7 can be seen, has. The movement of the production mold 2 along the production line and thus also the circulation line 9 is supported by the roller device 23 . In particular in the areas in which the movement of a production mold 2 does not take place via the toothing device with the toothed rack 19 and/or 20 and a toothed element 21 respectively toothed with it, the movement is realized in particular only by the roller device 23 .

In 6 is, as already explained above, the side view of the embodiment in 5 shown. The inclined position of the open production mold 2 in this assembly area 10 can be seen. In particular, the support table 12 can be pivoted into this position by a corresponding pivoting device of the production system 1 .

In 7 a partial section of the production plant 1 is shown in a perspective view. In particular, in this context, the support table 12 can be pivoted about an axis C, as is shown in 6 is shown to take place. This axis C is in 6 oriented perpendicular to the plane of the figure.

Reference List

1

manufacturing plant

2'

manufacturing form

3'

mold carrier

3

mold carrier

3a

side lengths

3b

side lengths

4'

mold carrier

4

mold carrier

4a

side lengths

4b

side lengths

5'

joint device

5

joint device

5a

joint

5b

joint

6

worker

7'

back

8th'

front

9

circulation route

10

assembly area

11

conveyor

12

support table

13

locking area

14

poor

15

revolving roller

16

swivel device

17

foaming unit

18

conveyor unit

19

rack

20

rack

21

gear element

22

engine

23

roller setup

A

longitudinal axis

B

pivot axis

Claims (15)

Manufacturing installation (1) for manufacturing a door of a household refrigerating appliance, with a manufacturing mold (2') which has a first mold carrier (3') for receiving a front side (7') of the door and a second mold carrier ( 4') for receiving a rear side (8') of the door, and with a hinge device (5') with which the two mold carriers (3', 4') are pivotally connected to one another, characterized in that the production mold (2) has a has a horizontally oriented longitudinal axis (A) and when the production mold (2) is in the open state, viewed in the direction of this horizontal longitudinal axis (A), the first mold carrier (3) is arranged in series with the second mold carrier (4) and the joint device (5) in the direction this horizontal longitudinal axis (A) is arranged between the two mold carriers (3, 4), so that a pivot axis (B) of the joint device (5) is formed which is oriented perpendicularly to the horizontal longitudinal axis (A). Manufacturing plant (1) according to claim 1 , characterized in that the joint device (5), viewed in the direction of the pivot axis (B), has an upper joint (5a) and a lower joint (5b), which at mutually facing corners of short side lengths (3b, 4b) of the mold carrier (3, 4) are arranged. Manufacturing plant (1) according to claim 1 or 2 , characterized in that the mold carriers (3, 4) are arranged in the open state of the production mold (2) in the height direction (y) and in the depth direction (z) of the production plant (1) in the same position. Production plant (1) according to one of the preceding claims, characterized in that the production plant (1) has a conveyor device (11) on which the two mold carriers (3, 4) lie next to one another in a common plane when the production mold (2) is in the open state are arranged. Manufacturing plant (1) according to claim 4 , characterized in that the conveyor device (11) has a support table (12) on which the mold carriers (3, 4) are arranged, the support table (12) being at an angle of between 20° and 70°, in particular between 30° and 60°, compared to the horizontal plane. Manufacturing plant (1) according to claim 4 or 5 , characterized in that the conveying device (12) has a conveying unit (18) with which the mold carriers (3, 4) are moved further on a support table (12) of the conveying device (11). Manufacturing plant (1) according to claim 6 , characterized in that the conveyor unit (18) has at least one toothed rack (19, 20) which is designed for meshing coupling and decoupling with at least one further toothed element (21) of the conveyor device (11), with a relative movement between the Rack (19, 20) and the toothed element (21) by at least one motor (22) of Conveying device (11) can be effected, so that the mold carriers (3, 4) can be displaced by a defined distance on the support table (12), in particular without slipping. Manufacturing plant (1) according to claim 6 or 7 , characterized in that the conveyor unit (18) has a roller device (23) on which the mold carriers (3, 4) rest, so that further movement on the support table (12) can be carried out by rolling along. Manufacturing plant (1) according to one of the preceding claims, characterized in that the manufacturing plant (1) has a pivoting device (16) with which, in order to close the manufacturing mold (2), a mold carrier (3, 4) can be pivoted about the pivot axis (B) onto the other mold carrier (3, 4) is swung open. Production plant (1) according to one of the preceding claims, characterized in that at least one mold carrier (3, 4) has a width measured parallel to the pivot axis (B) between 750mm and 1050mm, in particular between 800mm and 1000mm. Production plant (1) according to one of the preceding claims, characterized in that at least one mold carrier (3, 4) has a length measured parallel to the longitudinal axis (A) of between 1200 mm and 2500 mm. Production plant (1) according to one of the preceding claims, characterized in that the production plant (1) has a foaming unit (17) with which insulating foam can be introduced into the production mold (2). Production plant (1) according to one of the preceding claims, characterized in that it is a circulating plant in which the conveyor device (11) is a linear system with a conveyor section (9) on which several production molds (2) are placed at the same time and in the direction of the Longitudinal axes (A) of the mold carriers (3, 4) can be conveyed in a circumferential manner. Production plant (1) according to one of the preceding claims, characterized in that the mold carriers (3, 4) in the open state of the production mold (2) are arranged next to one another in a linear direction such that they are simultaneously on the one hand with the front side (7') and on the other hand can be fitted with the back (8'). Method for producing a door for a household refrigeration appliance with a production system (1) according to one of the preceding claims, in which the following steps are carried out: - providing an opened production mold (2) on a conveyor device (11) of the production plant (1), so that the mold carriers (3, 4) are arranged in series with one another in the direction of their longitudinal axes (A); - equipping the first mold carrier (3) with the front side (7') of the door; - equipping the second mold carrier (4) with the back (8') of the door, the position of the mold carriers (3, 4) in relation to one another remaining unchanged during this loading with the front (7') and the rear (8'); - filling the inserted front (7') and/or the inserted rear (8') with insulating foam; and - Closing the production mold (2) by pivoting one mold carrier (3, 4) about the pivot axis (B) of the joint device (5) onto the other mold carrier (3, 4).

Images